How to Convert a Delimited String to an Associative Array without Loops?

Converting a Delimited String to an Associative Array without Loops

The task at hand is to transform a string containing key-value pairs separated by delimiters (e.g., "1-350,9-390.99") into an associative array. While loops can accomplish this, it is possible to achieve this using only array functions.

One approach involves utilizing the array_chunk function to break the string into chunks of two elements: the key and value. This is followed by array_column to extract the keys and values into separate arrays. Finally, array_combine is used to combine these extracted arrays into the desired associative array.

Here's a PHP 5.5 implementation:

<code class="php">$input  = '1-350,9-390.99';

$chunks = array_chunk(preg_split('/[-,]/', $input), 2);
$result = array_combine(array_column($chunks, 0), array_column($chunks, 1));

print_r($result);</code>

This will produce the following associative array:

Array
(
    [1] => 350
    [9] => 390.99
)

This approach not only eliminates the need for explicit loops but also utilizes native PHP functions for enhanced performance and code readability.

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